What's the difference between a pilsner and a stout? Why is water so important to beer? What's the best temperature to serve a lager, an ale, or a stout? What the heck is a hop anyway? Betts makes the science and history of beer as refreshing as an ice-cold one on a hot summer day and couples accessible information with beautiful illustrations and sixteen scratch & sniff scents. Everyone from frat bros to the snootiest beer snobs will learn something new. With this knowledge in hand, and some scratching and sniffing, you'll have the tools to make informed decisions about the brews that will make you smile every time. Cheers!